[PSUBS-MAILIST] Air conditioner

[Jon Wallace]

Here's a link to a homemade cooler using a one gallon jug of frozen water.

http://www.youtube.com/watch?v=HxSLbpAwibg



________________________________
 From: Joe Perkel <josephperkel at yahoo.com>
To: "personal_submersibles at psubs.org" <personal_submersibles at psubs.org> 
Sent: Sunday, October 6, 2013 11:08 PM
Subject: Re: [PSUBS-MAILIST] Air conditioner
 


Here's a 12VDC unit

http://www.tropicalmarineairconditioning.com/sheets/2425C.pdf

This one is dedicated DC, ..but I think running a similar sized AC unit off an inverter for dual power source options is worth considering. Powering the unit on the surface as I described in an earlier post. I don't propose diving with the unit running, but more so a pre and post mission environmental purge, particularly with the main goal of aggressively dehumidifying the cabin.

No space in these boats as you note, this requires upsizing accordingly, but carefully. I once calculated the volume of a sacrificed conning tower could be substituted for 48" and a shortened length for nearly the same weight, I forget the numbers for the moment.

These compact AC units can be plumbed as I described earlier, the heat exchanger would have to be purposely designed. The outflow
 water of these units is pretty damn hot, much much hotter than the surrounding water.

I live through Vance's camel torture story for about five minutes every time I climb into my white SUV. 

If I'm ever to build and have a practical Florida submersible, I've got to be cognizant of these issues and address then carefully. 

Joe



Sent from Yahoo! Mail for iPad 



________________________________
 From:  Jon Wallace <jonw at psubs.org>; 
To:  Personal Submersibles General Discussion <personal_submersibles at psubs.org>; 
Subject:  Re: [PSUBS-MAILIST] Air conditioner 
Sent:  Mon, Oct 7, 2013 2:32:22 AM 



In the recreational, personal, sub-world you generally can't have your 
cake and eat it too.  Put two adults in a small sub like the K250 and 
you sacrifice comfort for occupancy.  Freon based AC units whether auto 
or household are not practical solutions for the traveling submariner, 
such as convention diving.  There was zero space for such an AC unit on 
board the Boston Whaler used to tow SNOOPY out into the ocean, and the 
support boat was being tossed in 2-4 foot seas.  It simply is not 
practical unless you are building a support boat specific for your sub 
diving and trailering it along with your submarine to the dive location.

The best solution for the average psubber is to use a small ice chest 
(six-pack size) stuffed with ice and then circulate cabin air over that 
ice.  Use a small computer fan to force air over the ice
 if necessary.  
The first refrigerators were nothing more than ice-chests, low-tech, 
easy maintenance, not super efficient but adequate to keep things 
relatively cool.

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